Patent US3224848A successfully refreshed from Google Patents.
US3224848A
Expired / Lapsed
US
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Gasoline composition
Assignee: Shell USA Inc
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Filing: 1959-03-16
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Granted: 1965-12-21
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Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 Hubert T Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:37
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852; C10L1/02; C10L1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A GASOLINE COMPOSITION CONSISTING ESSENTIALLY OF A BRANCHED CHAIN DI-LOWER-ALKYL ETHER HAVING FROM 4 THROUGH 8 CARBON ATOMS IN A MIXTURE OF NAPHTHENE, AROMATIC AND PARAFFIN GASOLINE BOILING RANGE HYDROCARBON IN WHICH MIXTURE THE CONCENTRATION OF NAPHTHENES IS FROM ABOUT 2% TO ABOUT 25% BY VOLUME, THE CONCENTRATION OF AROMATICS IS AT LEAST 15% AND NO MORE THAN 75% BY VOLUME AND WHICH MIXTURE CONTAINS NO MORE THAN ABOUT 10% BY VOLUME OF OLEFINS, THE CONCENTRATION OF ETHER IN THE COMPOSITION BEING NO MORE THAN ABOUT 50% BY VOLUME.
Claim 2
Dependent Claim
89 words
A GASOLINE COMPOSITION CONSISTING ESSENTIALLY OF A BRANCHED CHAIN DI-LOWER-ALKYL ETHER HAVING FROM 4 THROUGH 8 CARBON ATOMS IN A MIXTURE OF NAPHTHENE, AROMATIC AND PARAFFIN GASOLINE BOILING RANGE HYDROCARBON IN WHICH MIXTURE THE CONCENTRATION OF NAPHTHENES IS FROM ABOUT 2% TO ABOUT 25% BY VOLUME, THE CONCENTRATION OF AROMATICS IS AT LEAST 15% AND NO MORE THAN 75% BY VOLUME AND WHICH MIXTURE CONTAINS NO MORE THAN ABOUT 10% BY VOLUME OF OLEFINS, THE CONCENTRATION OF ETHER IN THE COMPOSITION BEING NO MORE THAN ABOUT 50% BY VOLUME.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |